EL lamp with beveled edge

Details EL lamp with beveled edge EL lamp with beveled edge

1996-06-13

1998-09-15

Rachuba, Maurina T.

Cutting

Processes

With preparatory or simultaneous ancillary treatment of work

83 21, 83946, B26D 714

Patent

active

058063897

ABSTRACT:
An EL lamp has a perimeter that is beveled and said rear electrode is smaller in area than said front electrode due to said bevel. The lamp is made by placing an EL panel on a concave die with the rear electrode in contact with the die and shearing the edge of the lamp at an acute angle. The angle is between 30.degree. and 60.degree. and is preferably 45.degree.. The die has a radius of curvature that is 50-150 times the thickness of the panel to prevent deformation of the panel. For circular or nearly circular lamps, the entire perimeter of the lamp can be cut in a single stroke.

REFERENCES:
patent: 349388 (1886-09-01), Fowler
patent: 5184969 (1993-02-01), Sharpless et al.
patent: 5309060 (1994-05-01), Sharpless et al.
patent: 5491379 (1996-02-01), Daigle et al.
patent: 5583394 (1996-12-01), Burbank et al.

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